Reliability, Validity, and Multiple-Item Scales in Statistics MCQ
Reliability, Validity, and Multiple-Item Scales in Statistics MCQ
1. A method of scale construction in which items are selected for inclusion in the scale because they have high correlations with the criterion of interest is known as:
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Correct Answer:
Empirical Keying
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2. Discriminant Validity means our theories tell us that a measure X should be unrelated to other variables such as Y, a correlation of near 0 is taken as evidence of discriminant validity, that is, evidence that X does not measure things it should not be measuring.
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Correct Answer:
True
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3. _____________ _ is the degree to which a new measure, X', correlates with an existing measure, X, that is supposed to measure the same construct .
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Correct Answer:
Convergent Validity
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4. Tests that involve the presentation of ambiguous stimuli (such as Rorschach inkblots or thematic apperception test drawings) is known as:
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Correct Answer:
Projective Tests
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5. The degree to which it is obvious what attitudes or abilities a test measures from the content of the questions posed is called __________ .
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Correct Answer:
Face Validity
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6. The degree to which the content of questions in a self-report measure covers the entire domain of material that should be included (based on theory or assessments by experts) is known as:
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Correct Answer:
Content Validity
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7. The degree to which an X variable really measures the construct that it is supposed to measure is known as:
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Correct Answer:
Construct Validity
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8. When a test developer creates two versions of a test (which contain different questions but are constructed to include items that are matched in content) is called ___________ .
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Correct Answer:
Parallel-Forms Reliability
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9. A type of internal consistency reliability assessment that is used with multiple-item scales. The set of p items in the scale is divided (either randomly or systematically) into two sets of p/2 items is known as:
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Correct Answer:
Split-Half Reliability
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10. Kuder-Richardson 20 (KR-20) is the name given to Cronbach’s alpha when all items are dichotomous. See also internal consistency reliability.
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Correct Answer:
Kuder-Richardson 20 (KR-20)
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11. When a correlation is obtained to index split-half reliability, that correlation actually indicates the reliability or consistency of a scale with p/2 items is called __________ .
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Correct Answer:
Spearman-Brown Prophecy Formula
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12. Consistency or agreement across a number of measures of the same construct, usually multiple items on a self-report test is known as:
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Correct Answer:
Internal Consistency Reliability
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13. An index of internal consistency reliability that assesses the degree to which responses are consistent across a set of multiple measures of the same construct, usually self-report items is known as:
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Correct Answer:
Cronbach’s alpha (α)
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14. A statistic that assesses the degree of agreement in the assignment of categories made by two judges or observers (correcting for chance levels of agreement) is known as:
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Correct Answer:
Cohen’s Kappa [κ]
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